Hello. I too will be taking the plunge after the new year. To answer your question, first you have to decide what to mine. Mining BTC is a lost cause right now. There are too many ASIC's hitting the market now to keep up. Unless you have a big stock pile of them now, you are better to start mining other coins then exchange them for BTC. At least that is what I have found researching over the past couple of months. As for ASIC's that mine scrypt coins, those are either a scam or way way too expensive right now when getting started. For me, I plan on making a 3-4 GPU rig and mining scrypt coins. According to my research, I will probably make around $50 a day. It will cost me about $5 a day in electricity to run. That way, if I decide that it isn't right for me, I can sell the parts and get 90% of my money back. My advice is to do ALOT of research here. Read everything, and use the search above. hances are, there was someone else asking the same question you are trying to ask. Hope this helps.